Dual chamber tank



FIG. 1 is a perspective view of a dual chamber tank showing my new design;

FIG. 2 is an elevation view of the design of FIG. 1, wherein all sides of the design are identical;

FIG. 3 is a top plan view of the design of FIG. 1;

FIG. 4 is a bottom plan view of the design of FIG. 1; and,

FIG. 5 is an exploded perspective view of the design of FIG. 1.

The broken lines in the drawings depict portions of the dual chamber tank that form no part of the claimed design. 

CLAIM The ornamental design for a dual chamber tank, as shown and described. 